Dometic Spray Pump Valve Adapter Kit (20-Pack) - Part# 385311866

DometicSKU: 385311866
Added to catalog: March 10, 2026
Last product update: June 30, 2026 at 11:14 PM
$203.99 $324.34
| Found it cheaper? Get an answer in seconds.
Available from Dometic warehouse (2 units)
Availability details
Elkhart RV Parts warehouse0 ready to ship
ERVP overstock warehouse0 available
This quantity is stocked at ERVP. See the delivery estimate below for the current expected window.
Availability details
Elkhart RV Parts warehouse0 ready to ship
Dometic warehouse2 available
Ships after Dometic warehouse processing. See the delivery estimate below for the current expected window.
FREE Delivery Estimate July 6 – July 14
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

Read full policy →

Keep your Dometic 300, 310, and 320 series toilet spray pump operating smoothly with this genuine OEM valve adapter kit. This 20-pack of replacement adapters ensures you have spares on hand for routine maintenance or emergency repairs, eliminating downtime on the road.

  • Genuine OEM Dometic part for 300/310/320 series toilets
  • 20-pack quantity provides long-term supply for multiple repairs
  • Direct replacement valve adapter—no modifications needed
  • Maintains proper spray pump pressure and function
  • Essential maintenance item for frequent RV users
  • Compatible with standard Dometic toilet plumbing systems
Specification Details
Part Number 385311866
Quantity 20 adapters per kit
Compatible Models Dometic 300, 310, 320 series
Type Spray pump valve adapter
Material OEM plastic construction

Frequently Asked Questions

Q: How often should I replace these valve adapters?
A: Replace adapters when you notice reduced spray pressure, leaks around the pump connection, or as part of annual toilet maintenance. Most RV owners replace them every 1–2 years depending on usage.

Q: Will these fit my older Dometic toilet model?
A: These adapters are designed for 300, 310, and 320 series toilets. Check your toilet model number on the bowl rim or tank before ordering to ensure compatibility.

Q: Can I install these myself?
A: Yes. Turn off water supply, disconnect the spray pump hose, unscrew the old adapter, and thread the new one in by hand. No special tools required. Refer to your Dometic manual for detailed steps.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM stock with expert support to help you find exactly what you need.
100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

You may also like

Recently viewed